The Book of Judges is a history book in the Old Testament of the Bible. But it does not only contain history. It also teaches us to trust God more.
The Book of Judges contains the history of about 300 years when Israel had no king. Instead, God appointed special people, called 'judges' to lead the people. These 'judges' were not like judges today. They were holy men (and one woman), whom God called. They led the people in battles. And they helped the people to serve God.
When there was a judge, the people obeyed God. And God helped the people in their battles against their enemies. But, when there was no judge, the people forgot God. And God allowed their enemies to be strong. So, the people asked God to help. And then, God appointed another judge. (Judges 2:16-19).
Some of the famous judges were Deborah (Judges chapters 4-5), Gideon (Judges chapters 6-8) and Samson (Judges chapters 13-16).